CN113890565B - Anti-interference device based on low-voltage power carrier - Google Patents
Anti-interference device based on low-voltage power carrier Download PDFInfo
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- CN113890565B CN113890565B CN202111154984.5A CN202111154984A CN113890565B CN 113890565 B CN113890565 B CN 113890565B CN 202111154984 A CN202111154984 A CN 202111154984A CN 113890565 B CN113890565 B CN 113890565B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/32—Reducing cross-talk, e.g. by compensating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/32—Reducing cross-talk, e.g. by compensating
- H04B3/34—Reducing cross-talk, e.g. by compensating by systematic interconnection of lengths of cable during laying; by addition of balancing components to cable during laying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The application discloses an anti-interference device based on a low-voltage power carrier, which comprises a mounting box, a fastening component and a damping component, wherein the mounting box; the fastening assembly is arranged in the mounting box and comprises a mounting hole, an elastic gasket and a spring, wherein the elastic gasket and the spring are arranged in the mounting hole; the damping component is arranged in the mounting box and comprises a buffer frame, a squeezing sheet arranged in the buffer frame and a pressing plate connected with the squeezing sheet; according to the anti-interference device based on the low-voltage power carrier, the anti-interference component is fixed up and down in the mounting box and is tightly attached to the surface to be tested, the output optical cable is tightly attached to the optical cable to be tested, and the vibration influence of the external cable on the probe of the anti-interference component is reduced by adopting the pressing plate and the pressing plate in the connecting channel.
Description
Technical Field
The application relates to the technical field of power detection tools, in particular to an anti-interference device based on a low-voltage power carrier.
Background
The existing meter reading device has the advantages that the filtering capacitor is connected to the noise generation power supply in parallel, noise is short-circuited to a zero line or short-circuited to a ground line through the filter, noise influence is reduced, but because a carrier signal also belongs to a high-frequency signal, the carrier signal is weakened, and meter reading is difficult, so that the anti-interference device based on a low-voltage power carrier is provided, noise users are filtered through the magnetic ring capacitor, and compared with the original scheme, a magnetic ring is added, and a filtering circuit is improved. The magnetic ring presents a resistor R at high frequency, forms an RC low-pass filter with a safety capacitor C, has stronger noise suppression capability and smaller influence on carrier signals than the original scheme, is internally provided with a fastening and damping component, is fixed up and down by an anti-interference circuit in a mounting box, is tightly attached to a tested cable on an output cable, and adopts a pressing plate and a pressing plate in a connecting channel to reduce the vibration influence of an external cable.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
In view of the above problems with the prior art anti-interference devices based on low voltage power carriers.
Therefore, the application aims to provide an anti-interference device based on a low-voltage power carrier, the prior art generally adopts adhesive tape to wind and fix a cable arranged on an ammeter, the installation mode is not firm, and the carrier signal is also a high-frequency signal, and the filter capacitor weakens the carrier signal, so that meter reading is difficult.
In order to solve the technical problems, the application provides the following technical scheme: an anti-interference device based on a low-voltage power carrier comprises a mounting box, a fastening component and a damping component, wherein the mounting box is provided with a plurality of anti-interference holes; the fastening assembly is arranged in the mounting box and comprises a mounting hole, an elastic gasket and a spring, wherein the elastic gasket and the spring are arranged in the mounting hole; and the damping component is arranged in the installation box and comprises a buffer frame, a squeezing sheet arranged in the buffer frame and a pressing plate connected with the squeezing sheet, and the anti-interference component is arranged in the installation box and comprises a first magnetic ring group, a capacitor connected with the first magnetic ring group in parallel and a second magnetic ring group connected with the capacitor.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the bottom of the installation box is arc-shaped, a channel is formed in the side wall of the installation box, a contact opening is formed in the bottom of the installation box, and a limiting groove is formed in the installation box.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the fastening component is arranged in the limit groove, the channel is communicated with the limit groove, the channel is arranged in a certain gradient, the horizontal height of one end connected with the limit groove on the vertical section is higher, and the horizontal height of one end connected with the side wall is lower; the contact port is arranged at the bottom of the limit groove.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the mounting hole set up in spacing inslot top is located the mounting box is interior top, and with spacing groove sets up relatively, is in same vertical line, spacing inslot wall size is the same with mounting hole inner wall size.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the elastic gasket is arranged in the mounting hole, the spring is connected with the elastic gasket and the inner wall of the mounting hole, the size of the elastic gasket is smaller than that of the inner wall of the mounting hole, and the length of the spring and the elastic gasket in a natural state is not more than the depth of the inner wall of the mounting hole.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the buffer rack is arranged in the channel, the whole buffer rack is cuboid, the side wall of the buffer rack is provided with a connecting hole, the connecting hole penetrates through the buffer rack and is arranged at the bottom, a placing groove is further formed in the buffer rack, and the connecting hole is arranged at the bottom of the placing groove.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the holding tank top, the screens groove has been seted up at buffer rack inner wall top, the screens groove is seted up around the buffer rack inner wall, and the fillet has still been seted up to the screens tank bottom portion that is located the holding tank minor face.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the clamp plate sets up in the screens inslot, and its top is round horizontal pole, the horizontal pole can imbed the screens inslot, and its minor face bilateral symmetry is provided with splint.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the clamp plate comprises elastic edge, hard board and butt plate, elastic edge and horizontal pole fixed connection, the slant set up, with the corner that the horizontal pole is connected with the fillet laminating, the hard board sets up in elastic edge bottom, butt plate sets up in elastic edge top, and its top is equipped with the angle jack-up, extend one end along the apex angle both sides with the hard board is connected, the other end with elastic edge middle part is connected, clamp plate vertical height does not surpass buffer frame inner wall height, the extrusion piece is the T type, including set up in the shell fragment at top and with the gag lever post that the shell fragment is connected, shell fragment horizontal length surpasses the horizontal pole, the gag lever post sets up in shell fragment central authorities, and is located two when it is in the installed state, the degree of depth that the butt plate was located in the clamp plate is not exceeded.
As a preferable scheme of the anti-interference device based on the low-voltage power carrier, the application comprises the following steps: the first magnetic ring group is connected with the ammeter, and the second magnetic ring group is connected with the user side.
The application has the beneficial effects that:
the noise user is filtered through the magnetic ring capacitor, so that the magnetic ring is added and the filter circuit is improved compared with the original scheme. The magnetic ring presents a resistor R at high frequency, forms an RC low-pass filter with a safety capacitor C, has stronger noise suppression capability and smaller influence on carrier signals than the original scheme, is internally provided with a fastening and damping component, is fixed up and down by an anti-interference circuit in a mounting box, is tightly attached to a tested cable on an output cable, and adopts a pressing plate and a pressing plate in a connecting channel to reduce the vibration influence of an external cable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of an anti-interference device based on a low-voltage power carrier.
Fig. 2 is a schematic diagram of a buffer frame structure of an anti-interference device based on a low-voltage power carrier.
Fig. 3 is a cross-sectional view of a buffer frame structure of the anti-interference device based on a low-voltage power carrier of the present application.
Fig. 4 is a schematic diagram of a platen structure of the anti-interference device based on the low-voltage power carrier of the present application.
Fig. 5 is a cross-sectional view of a shock absorbing assembly of the anti-interference device based on a low-voltage power carrier wave of the present application.
Fig. 6 is a circuit diagram of an anti-interference component of the anti-interference device based on a low-voltage power carrier.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Examples
Referring to fig. 1 to 6, for a first embodiment of the present application, there is provided an anti-interference device based on a power carrier of electricity, the device including a mounting case 100, a fastening assembly 200, and a shock absorbing assembly 300, wherein the mounting case 100; a fastening assembly 200 disposed in the mounting box 100 and including a mounting hole 201, an elastic pad 202 disposed in the mounting hole 201, and a spring 203; and the shock absorption assembly 300 is arranged in the mounting box 100 and comprises a buffer frame 301, a squeezing sheet 302 arranged in the buffer frame 301 and a pressing plate 303 connected with the squeezing sheet 302, and the disturbance rejection assembly 400 is arranged in the mounting box 100 and comprises a first magnetic ring group 401, a capacitor 402 connected with the first magnetic ring group 401 in parallel and a second magnetic ring group 403 connected with the capacitor 402.
Wherein, the mounting box 100 bears the immunity component 400 circuit, and the fastening assembly 200 can fix the immunity component 400 inside the mounting box 100, reduces the influence that external vibration brought, and damper assembly 300 sets up on the immunity component 400 output line, and is fixed to the output line shock attenuation, reduces the influence of cable rocking to the immunity circuit. The anti-interference assembly 400 is arranged in the mounting hole 201, the anti-interference assembly 400 can be sleeved outside the mounting hole 201 through the diameter of the inner wall with the same size, the mounting hole 201 is fixed inside the mounting box 100, the anti-interference circuit is limited, the elastic gasket 202 and the spring 203 can be matched and arranged in the mounting hole 201, the anti-interference circuit is given downward acting force, the anti-interference circuit is tightly attached to the inner wall, the buffer rack 301 bears all the shock absorption assemblies 300 and is arranged on an output line, the extrusion piece 302 and the pressing plate 303 fixedly extrude an output cable, and the phenomenon that the meter reading is inaccurate due to deflection caused by vibration of the extrusion piece is prevented.
Further, the bottom of the installation box 100 is arc-shaped, a channel 101 is formed in the side wall of the installation box, a contact port 102 is formed in the bottom of the installation box, and a limit groove 103 is formed in the installation box. The fastening component 200 is arranged in the limit groove 103, the channel 101 is communicated with the limit groove 103, the channel 101 is arranged in a certain gradient, the horizontal height of one end connected with the limit groove 103 on the vertical section is higher, and the horizontal height of one end connected with the side wall is lower; the contact port 102 is arranged at the bottom of the limit groove 103. The mounting hole 201 is arranged above the inside of the limit groove 103, is positioned at the top of the inside of the mounting box 100, is opposite to the limit groove 103, is positioned on the same vertical line, and has the same size as the inner wall of the mounting hole 201. The elastic gasket 202 is arranged in the mounting hole 201, the spring 203 is connected with the elastic gasket 202 and the inner wall of the mounting hole 201, the size of the elastic gasket 202 is smaller than that of the inner wall of the mounting hole 201, and the length of the spring 203 and the elastic gasket 202 in a natural state does not exceed the depth of the inner wall of the mounting hole 201.
The mounting box 100 bottom is the arc and can laminate more with the cable surface, set up the disturbance rejection subassembly 400 circuit in the passageway 101, contact port 102 sets up in the mounting box 100 bottom, be used for providing output interface and user end connection, passageway 101 is certain slope setting, make the circuit hug closely the output along the outer wall, avoid overhead setting, spacing groove 103 and mounting hole 201 set up relatively, be in same vertical line, spacing groove 103 and mounting hole 201 inner wall diameter size and disturbance rejection subassembly 400 outer wall diameter size are unanimous, can cup joint outside disturbance rejection subassembly 400, carry out spacingly to it in the horizontal direction, elastic gasket 202 and spring 203 set up inside mounting hole 201, give disturbance rejection subassembly 400 decurrent power in disturbance rejection subassembly 400 top, prevent that it from reciprocating to cause data collection unclear, carry out spacingly to disturbance rejection subassembly 400 on the vertical direction, so far, disturbance rejection subassembly 400 can be fixed inside mounting box 100, and hug closely with the inner wall.
The buffer rack 301 is disposed in the channel 101, and is generally rectangular, and has a side wall provided with a connection hole 301a, wherein the connection hole 301a penetrates the buffer rack 301 and is disposed at the bottom, and a placement groove 301b is further disposed in the buffer rack 301, and the connection hole 301a is disposed at the bottom of the placement groove 301 b. The top of the placing groove 301b, the top of the inner wall of the buffer rack 301 is provided with a clamping groove 301c, the clamping groove 301c is arranged around the inner wall of the buffer rack 301, and the bottom of the clamping groove 301c positioned on the short side of the placing groove 301b is also provided with a round angle 301d.
Further, the pressing plate 303 is disposed in the clamping groove 301c, the top of the pressing plate is a circle of cross bars 303a, the cross bars 303a can be embedded into the clamping groove 301c, and clamping plates 303b are symmetrically disposed on two sides of the short sides of the cross bars. The clamping plate 303b consists of an elastic edge 303b-1, a hard plate 303b-2 and a resisting plate 303b-3, wherein the elastic edge 303b-1 is fixedly connected with the cross rod 303a, the corner connected with the cross rod 303a is obliquely arranged and is attached to the round corner 301d, the hard plate 303b-2 is arranged at the bottom of the elastic edge 303b-1, the resisting plate 303b-3 is arranged above the elastic edge 303b-1, a corner jacking is arranged at the top of the resisting plate 303b-3, one end extending along two sides of a vertex angle is connected with the hard plate 303b-2, the other end is connected with the middle of the elastic edge 303b-1, and the vertical height of the pressing plate 303 does not exceed the height of the inner wall of the buffer frame 301. The extrusion piece 302 is T-shaped and comprises a spring piece 302a arranged at the top and a limiting rod 302b connected with the spring piece 302a, the horizontal length of the spring piece 302a exceeds that of the cross rod 303a, the limiting rod 302b is arranged in the center of the spring piece 302a and located between the two clamping plates 303b, and when the extrusion piece is in an installation state, the depth of the extrusion piece is not more than that of the abutting plate 303b-3 in the pressing plate 303.
The buffer rack 301 is arranged in the channel 101, the connecting hole 301a is formed in the side wall of the buffer rack, the connecting hole 301a formed in the bottom of the buffer rack can pass through an output cable of the anti-interference component 400, the placing groove 301b comprises a connecting hole 301a formed in the bottom of the connecting hole and a clamping groove 301c formed in the top of the connecting hole, the clamping groove 301c can be embedded into the pressing plate 303, a cross rod 303a at the top of the pressing plate 303 can be matched with the clamping groove 301c, a round corner 301d at the bottom of the clamping groove 301c provides a larger movable range of an elastic edge 303b-1, the elastic edge 303b-1 can be pressed downwards to rotate for a certain angle, the hard plate 303b-2 is arranged at the bottom of the elastic edge 303b-1, the hard plate 303b-2 is driven to be pressed downwards to compress an output line when the elastic edge 303b-1 is pressed downwards, the pressing plate 303b-3 is arranged above the hard plate 303b-2, the pressing plate 303b-3 is pressed by the pressing plate 303b-3 through the elastic plate 302a, the hard plate 303b-2 is pressed downwards onto the output cable, and the limiting rod 302b is prevented from being bent too much between the two hard plates 303 b-2.
The anti-interference assembly 400 is disposed in the mounting box 100 and includes a first magnetic ring set 401, a capacitor 402 connected in parallel with the first magnetic ring set 401, and a second magnetic ring set 403 connected with the capacitor 402. The first magnetic ring set 401 is connected with the ammeter, and the second magnetic ring set 402 is connected with the user side. The capacitive 402 component, which applies the RC low pass filter principle, provides a capacitive module for filtering. The implementation is that the zero and live wire of the field filter plate (mainly the filter circuit and the capacitor C) is pressed into the empty opening of the user, and the second magnetic ring set 402 is utilized to present the resistor R at high frequency, so that the impedance of the user side can be improved, and the influence on the carrier signal is avoided. The first magnetic ring group 401 is installed at the free outlet end, and the magnetic ring is used for representing resistance R at high frequency and filtering with an RC low-pass filter of a field filter plate (capacitor) group layer. Applying the formula f=1/2, the noise signal is suppressed and filtered out when the frequency of the noise signal is greater than f. The ideal case is that 4 magnetic rings are added to each of the two ends, but the two ends can be adjusted according to the environment, at least 2 magnetic rings are added to each of the two ends (2 magnetic rings are added to the live wire at the side of the open wire, and a total of 8 magnetic rings are added to the zero wire).
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (6)
1. An anti-interference device based on low voltage power carrier wave, its characterized in that: comprising the steps of (a) a step of,
the mounting box (100), the bottom of the mounting box (100) is arc-shaped, a channel (101) is formed in the side wall of the mounting box, a contact port (102) is formed in the bottom of the mounting box, and a limit groove (103) is formed in the mounting box;
a fastening assembly (200) arranged in the mounting box (100) and comprising a mounting hole (201), an elastic gasket (202) and a spring (203) which are arranged in the mounting hole (201);
the fastening component (200) is arranged in the limit groove (103), the channel (101) is communicated with the limit groove (103), the channel (101) is arranged in a certain gradient, and the horizontal height of one end connected with the limit groove (103) on the vertical section is higher, and the horizontal height of one end connected with the side wall is lower; the contact port (102) is arranged at the bottom of the limit groove (103);
the mounting hole (201) is arranged above the inside of the limit groove (103), is positioned at the inner top of the mounting box (100), is opposite to the limit groove (103) and is positioned on the same vertical line, and the size of the inner wall of the limit groove (103) is the same as that of the inner wall of the mounting hole (201);
the elastic gasket (202) is arranged in the mounting hole (201), the spring (203) is connected with the elastic gasket (202) and the inner wall of the mounting hole (201), the size of the elastic gasket (202) is smaller than that of the inner wall of the mounting hole (201), and the length of the spring (203) and the elastic gasket (202) in a natural state is not more than the depth of the inner wall of the mounting hole (201);
the damping component (300) is arranged in the mounting box (100) and comprises a buffer frame (301), a squeezing sheet (302) arranged in the buffer frame (301) and a pressing plate (303) connected with the squeezing sheet (302); the method comprises the steps of,
the anti-interference assembly (400) is arranged in the installation box (100) and comprises a first magnetic ring group (401), a capacitor (402) connected with the first magnetic ring group (401) in parallel, and a second magnetic ring group (403) connected with the capacitor (402);
the anti-interference assembly (400) is arranged in the mounting hole (201), the anti-interference assembly (400) is sleeved outside the anti-interference assembly (400) through the diameter of the inner wall with the same size, and the mounting hole (201) limits the anti-interference assembly (400);
the elastic gasket (202) and the spring (203) can be matched and arranged in the mounting hole (201) to apply downward acting force to the anti-interference assembly (400) so as to enable the anti-interference assembly to be clung to the inner wall;
the fastening assembly (200) is capable of securing the tamper assembly (400) inside the mounting box (100);
the buffer frame (301) is arranged on an output line of the anti-interference assembly (400), and the extrusion sheet (302) and the pressing plate (303) fixedly extrude a cable on the output line to prevent the cable from shaking to cause offset so as to lead meter reading to be inaccurate.
2. The interference-free device based on a voltage power carrier according to claim 1, wherein: the buffer frame (301) is arranged in the channel (101), the whole body is cuboid, a connecting hole (301 a) is formed in the side wall of the buffer frame, the connecting hole (301 a) penetrates through the buffer frame (301) and is arranged at the bottom, a placing groove (301 b) is formed in the buffer frame (301), and the connecting hole (301 a) is arranged at the bottom of the placing groove (301 b).
3. The interference-free device based on a voltage power carrier according to claim 2, wherein: the top of the placing groove (301 b), the top of the inner wall of the buffer frame (301) is provided with a clamping groove (301 c), the clamping groove (301 c) is arranged around the inner wall of the buffer frame (301), and the bottom of the clamping groove (301 c) positioned on the short side of the placing groove (301 b) is also provided with a round corner (301 d).
4. The interference-free device based on a voltage power carrier according to claim 3, wherein: the clamp plate (303) is arranged in the clamping groove (301 c), the top of the clamp plate is provided with a circle of cross rod (303 a), the cross rod (303 a) can be embedded into the clamping groove (301 c), and clamping plates (303 b) are symmetrically arranged on two sides of the short side of the cross rod.
5. The interference-free device based on a voltage power carrier according to claim 4, wherein: the clamp plate (303 b) comprises an elastic edge (303 b-1), a hard plate (303 b-2) and a resisting plate (303 b-3), wherein the elastic edge (303 b-1) is fixedly connected with a transverse rod (303 a), the inclined arrangement is carried out, the corner connected with the transverse rod (303 a) is attached to the round corner (301 d), the hard plate (303 b-2) is arranged at the bottom of the elastic edge (303 b-1), the resisting plate (303 b-3) is arranged above the elastic edge (303 b-1), the top of the resisting plate is provided with a corner jack-up, one end extending along two sides of a vertex angle is connected with the hard plate (303 b-2), the other end of the resisting plate is connected with the middle of the elastic edge (303 b-1), the vertical height of the pressing plate (303) is not more than the height of the inner wall of the buffer frame (301), the pressing plate (302) is in a T shape and comprises a spring plate (302 a) arranged at the top and a limiting rod (302 b) connected with the spring plate (302 a), the horizontal length of the spring plate (302 a) is more than the depth of the middle of the pressing plate (303 b), and the pressing plate (303 b) is arranged in a state between the two sides.
6. The interference-free device based on a voltage power carrier according to claim 5, wherein: the first magnetic ring group (401) is connected with the electric meter, and the second magnetic ring group (403) is connected with the user side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111154984.5A CN113890565B (en) | 2021-09-29 | 2021-09-29 | Anti-interference device based on low-voltage power carrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111154984.5A CN113890565B (en) | 2021-09-29 | 2021-09-29 | Anti-interference device based on low-voltage power carrier |
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| CN113890565A CN113890565A (en) | 2022-01-04 |
| CN113890565B true CN113890565B (en) | 2023-09-15 |
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| CN203554436U (en) * | 2013-08-06 | 2014-04-16 | 国家电网公司 | Conducted interference isolation circuit for low-voltage circuit line carrier communication |
| CN207442843U (en) * | 2017-12-01 | 2018-06-01 | 国家电网公司 | A kind of power line carrier noise suppressed filter |
| CN208923601U (en) * | 2018-11-07 | 2019-05-31 | 广东电网有限责任公司 | Electric power distributing cabinet with damping, buffering structure |
| CN109714079A (en) * | 2019-03-07 | 2019-05-03 | 上海希形科技有限公司 | Power line carrier communication anti-jamming circuit |
| WO2021169053A1 (en) * | 2020-02-24 | 2021-09-02 | 江苏中电科电力设计院有限公司 | Combined fixed damping structure of power switch cabinet |
| CN112769136A (en) * | 2020-12-31 | 2021-05-07 | 深圳市九洲电器有限公司 | Filter circuit, power supply equipment and power supply system |
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| CN113890565A (en) | 2022-01-04 |
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